Fiziol. rast. genet. 2021, vol. 53, no. 6, 513-522, doi:

Interaction effect in the tank mixtures of herbicides diflufenican, metribuzin and carfentrazone

Yukhymuk V.V., Radchenko M.P., Sytnyk S.K., Morderer Ye.Yu.

  • Institute of Plant Physiology and Genetics, National Academy of Sciences of Ukraine 31/17 Vasylkivska St., Kyiv, 03022, Ukraine

The search for new combinations of herbicides with different phytotoxic mechanisms, which spectra intersect, is one of the ways to prevent the emergence and spread of herbicide-resistant weed biotypes. A limiting factor for the complex application of certain herbicides is the effect of their interaction, as it is known that the antagonistic nature of the interaction is more common than synergistic or additive. Сonsequently, the aim of our work was to study in greenhouse conditions the effects of interaction under the complexation of herbicides of three different classes. In mixtures, there were used inhibitor of carotenoid biosynthesis diflufenican, inhibitor of electron transport in photosystem II of chloroplasts metribuzin and inhibitor of enzyme protoporphyrinogen oxidase (on the way of synthesis of chlorophyll) carfentrazone. This study was conducted for determine the possibility of using mixtures of these herbicides by application at autumn in winter wheat crops. The results of the research showed that only in the mixture of carfentrazone with metribuzin the interaction has signs of antagonism, and in other binary combinations, as well as in the ternary mixture, the interaction is additive. Taking into account the spectra of studied herbicides action and the results of their interaction effects determination, it was concluded that for autumn application in winter wheat crops are promising a mixture of diflufenican with metribuzin and triple mixture with carfenuzrazone.

Keywords: herbicides, anti-resistant mixtures of herbicides, interaction effect, antagonism, additivity, synergism

Fiziol. rast. genet.
2021, vol. 53, no. 6, 513-522

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